Dubuque & Clinton Iowa | Plumbing, Heating & HVAC Distributor

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McDonald Supply

McDonald Supply is a full line plumbing and heating wholesale distributor in the tri-states. We carry the latest styles in plumbing fixtures/supplies and HVAC equipment/supplies. With locations in Dubuque and Clinton near the Mississippi River, we are able to serve contractors and homeowners in Iowa,Wisconsin and Illinois.

McDonald Supply has been a fixture in Dubuque, Iowa for over 150 years. With our excellent service and knowledgeable staff, let us be the 1st choice for all of your plumbing and heating needs.